[archer]

It means a vehicle or a ship that is placed, but has no further waypoints to go to, this causes an error.
If you can't find the ship, or vehicle by searching the map for a vehicle or ship with only 1 point, you should go into you il2 folder/ missions and shearch in the mission file itself with a text programm.

it should be something like this:

[Chiefs]
0_Chief Ships.USSIntrepidCV11 1 0 2 1.0
1_Chief Ships.USSLexingtonCV2 1 0 2 1.0
2_Chief Ships.USSBBGeneric 1 0 2 1.0
[0_Chief_Road]
102770.66 294365.63 120.00 0 2 13.88888888888889
107115.37 292138.19 120.00 0 2 13.88888888888889
114911.70 288784.63 120.00
[1_Chief_Road]
103672.51 294244.75 120.00 0 2 13.88888888888889
107263.52 292351.84 120.00 0 2 13.88888888888889
111849.82 290482.69 120.00 0 2 13.88888888888889
117132.01 288969.44 120.00
[2_Chief_Road]
104279.42 293461.78 120.00 0 2 13.88888888888889
106970.31 291870.19 120.00 0 2 13.88888888888889
113394.85 288558.19 120.00 0 2 13.88888888888889
114945.95 287434.06 120.00 0 2 13.88888888888889
116536.15 287147.53 120.00 0 2 7.330833911895752
118217.98 288634.19 120.00

But in your .mis file it probably has someting like this:

[Chiefs]
0_Chief Ships.USSIntrepidCV11 1 0 2 1.0
1_Chief Ships.USSLexingtonCV2 1 0 2 1.0
2_Chief Ships.USSBBGeneric 1 0 2 1.0
3_Chief Ships.IJNNowakiDD43 2 181 2 1.0
4_Chief Ships.IJNAkizukiDD42 2 242 2 1.0
[0_Chief_Road]
102770.66 294365.63 120.00 0 2 13.88888888888889
107115.37 292138.19 120.00 0 2 13.88888888888889
114911.70 288784.63 120.00
[1_Chief_Road]
103672.51 294244.75 120.00 0 2 13.88888888888889
107263.52 292351.84 120.00 0 2 13.88888888888889
111849.82 290482.69 120.00 0 2 13.88888888888889
117132.01 288969.44 120.00
[2_Chief_Road]
104279.42 293461.78 120.00 0 2 13.88888888888889
106970.31 291870.19 120.00 0 2 13.88888888888889
113394.85 288558.19 120.00 0 2 13.88888888888889
114945.95 287434.06 120.00 0 2 13.88888888888889
116536.15 287147.53 120.00 0 2 7.330833911895752
118217.98 288634.19 120.00
[3_Chief_Road]
118249.89 288202.75 120.00 0 2 13.88888888888889
[4_Chief_Road]
117998.90 288087.84 120.00 0 2 11.11111111111111
117238.65 288861.47 120.00 0 2 13.88888888888889
116479.91 289091.34 120.00 0 2 13.88888888888889
111684.88 290366.06 120.00 0 2 13.88888888888889
107239.05 292236.75 120.00

You should delete [3_Chief_Road]
118249.89 288202.75 120.00 0 2 13.88888888888889
and:
3_Chief Ships.IJNNowakiDD43 2 181 2 1.0


and save. If you go back to the FMB it should be allright, except if you have done it more than once of course :roll:

You can find the flaw easely because there should be more than 1 Coordinate below every chief.

[EDIT] oh I think you can just scroll down to 122_chief, that one will have only 1 coordinate. you should delete everything related to that chief.

chief 122 is just the called chief 122 because it is the 122th vehicle or ship you placed.